Self study Japanese Lesson 8: Telling time /Trains Part 2

Sometimes you might wonder, how to ask the train station which platform to take your next train. Below is a good example.
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Station Master: こんにちは (kon-ni-chi-wa/Good day)

You: __________(place that you want to go)へ いきたいですが、何番線ですか。 (__________(place that you want to go) e i-ki-tai-desu-ga, nan-ban-sen desu ka.)
I want to go to __________, which platform is it?